I run out the back of a moving train! XD

Okay, well, that method would require extra apparatus, which you don't want; you want to rely only on yourself. Well, at one point in a lucid I tried to fly by wallrunning up a building. Since I willed myself to fly, I scaled the entire building (it was tall, btw) in only two steps and was in the air. You might take the same approach with other inanimate (or animate! ) objects!